#!/bin/bash

# -------------------------------------------------------------------------- #
# Copyright 2002-2016, OpenNebula Project, OpenNebula Systems                #
#                                                                            #
# Licensed under the Apache License, Version 2.0 (the "License"); you may    #
# not use this file except in compliance with the License. You may obtain    #
# a copy of the License at                                                   #
#                                                                            #
# http://www.apache.org/licenses/LICENSE-2.0                                 #
#                                                                            #
# Unless required by applicable law or agreed to in writing, software        #
# distributed under the License is distributed on an "AS IS" BASIS,          #
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   #
# See the License for the specific language governing permissions and        #
# limitations under the License.                                             #
# -------------------------------------------------------------------------- #

###############################################################################
# This script is used to import a file into the marketplace. The source file
# is an opaque representation of an OpenNebula object, like a image file or a
# tar.gz with several vm template or flow disk images
###############################################################################

# -------- Set up the environment to source common tools & conf ------------

if [ -z "${ONE_LOCATION}" ]; then
    LIB_LOCATION=/usr/lib/one
else
    LIB_LOCATION=$ONE_LOCATION/lib
fi

. $LIB_LOCATION/sh/scripts_common.sh

DRIVER_PATH=$(dirname $0)
source ${DRIVER_PATH}/../../datastore/libfs.sh

UTILS_PATH="${DRIVER_PATH}/../../datastore"

# -------- Get arguments from OpenNebula core ------------

DRV_ACTION=$1
ID=$2

XPATH="$UTILS_PATH/xpath.rb -b $DRV_ACTION"

unset i XPATH_ELEMENTS

while IFS= read -r -d '' element; do
    XPATH_ELEMENTS[i++]="$element"
done < <($XPATH     /MARKET_DRIVER_ACTION_DATA/IMPORT_SOURCE \
                    /MARKET_DRIVER_ACTION_DATA/FORMAT \
                    /MARKET_DRIVER_ACTION_DATA/DISPOSE \
                    /MARKET_DRIVER_ACTION_DATA/SIZE \
                    /MARKET_DRIVER_ACTION_DATA/MD5 \
                    /MARKET_DRIVER_ACTION_DATA/MARKETPLACE/TEMPLATE/BASE_URL \
                    /MARKET_DRIVER_ACTION_DATA/MARKETPLACE/TEMPLATE/BRIDGE_LIST \
                    /MARKET_DRIVER_ACTION_DATA/MARKETPLACE/TEMPLATE/PUBLIC_DIR)
unset i

IMPORT_SOURCE="${XPATH_ELEMENTS[i++]}"
FORMAT="${XPATH_ELEMENTS[i++]}"
DISPOSE="${XPATH_ELEMENTS[i++]}"
SIZE="${XPATH_ELEMENTS[i++]}"
MD5="${XPATH_ELEMENTS[i++]}"
BASE_URL="${XPATH_ELEMENTS[i++]}"
BRIDGE_LIST="${XPATH_ELEMENTS[i++]}"
PUBLIC_DIR="${XPATH_ELEMENTS[i++]}"

# -------- Copy source to public folder an generarte App data ------------

APPNAME=`generate_image_hash`
DST_PATH="${PUBLIC_DIR%/}/${APPNAME}"
SOURCE="${BASE_URL%/}/${APPNAME}"

if [ -n "$BRIDGE_LIST" ]; then
    DST_HOST=`get_destination_host $ID`
    CP_CMD="$UTILS_PATH/downloader.sh '${IMPORT_SOURCE}' -"

    exec_and_log "eval $CP_CMD | $SSH ${DST_HOST} $DD of=${DST_PATH} bs=64k" \
                 "Error dumping ${IMPORT_SOURCE} to ${DST_HOST}:${DST_PATH}"

    #if [ "${DISPOSE}" = "YES" ]; then
    #TODO This should call a ds operation
    #fi
else
    CP_CMD="$UTILS_PATH/downloader.sh ${IMPORT_SOURCE} ${DST_PATH}"
    exec_and_log "$CP_CMD" "Error copying ${IMPORT_SOURCE} to ${DST_PATH}"

    if [ "${DISPOSE}" = "YES" ]; then
        #TODO This should call a ds operation
        exec_and_log "$RM ${IMPORT_SOURCE}" "Error removing ${IMPORT_SOURCE}"
    fi
fi

cat << EOF
SOURCE="$SOURCE"
MD5="$MD5"
SIZE="$SIZE"
FORMAT="$FORMAT"
EOF
